Malaysia airlines is addressing the public for the first time since officially announcing that there are no survivors from flight 370. They alerted family members of the devastating news by text message today. And just moments ago the chairman of the airline said it's a sad day for the airlines and the family. Now one mystery may be solved but so many questions remain. Why did a plane seemingly in perfect condition fall from the sky? ABC's bob woodruff is in the midst of it all in Kuala Lumpur. Reporter: Juju, this has been so emotional, as you can imagine forkts family , for the families here in Kuala Lumpur and in beijing as well. They've been waiting for this information for 17 days. Now finally some of those details are coming out. The sad thing is that some of these family members are furious that they got this news that their loved ones perhaps did not survive just before the prime minister's official announcement. They sent out a text message sent by the Malaysia airlines to their cell phones. The families that I know just really couldn't stop from crying. They were unleashing so much anger up in beijing as well. More subtle down here in Malaysia. But now some of these families could be taken down to Perth, Australia by the airline. Clearly the search for the plane and the bodies are going to step up. And hopefully, this has come to an end fairly soon in terms of the search. Our thanks to bob woodruff for the latest reporting from Kuala Lumpur. And the prime minister of Australia has just announced that they are waiving Visa fees for those families who are going down to Australia. And just minutes ago the Australian defense minister said they have not successfully identified or recovered any debris from flight 370. Time is running out in the desperate search for answers. With only 13 days to go before the plane's black box stops pinging, its crucial data could be lost forever. ABC's David Wright is in Australia along with investigators as they hunt for clues. Reporter: We now know what happened to flight 370. But why? That more profound question is still a mystery. The answer lies about two miles down on the ocean floor. For the families of 239 people who were hoping against hope, heartbreak tonight. There are no survivors, and there are still plenty of unanswered questions. The satellite firm inmarsat provided clues to the few answers we have. The firm helped narrow the final flight path based on pings it collected from the plane as it flew. The pings match our plot for the southern route. They do not match the northern route. And therefore, the northern route is ruled out. Reporter: But where exactly did it go down? That's still only a guess, based on how much fuel it had left. Today an Australian p-3 Orion finally spotted new clues. A gray or green circular object and an Orange rectangular object floating in the Indian ocean. We don't yet know if they were from the plane. The flight crew put down a marker and called in a supply ship, the only vessel nearby, the "Hmas success." The "Success" still hasn't succeeded in retrieving them. The weather too rough. Today the entire search was called off because of bad weather. But for a week now the search planes have scoured these waters, poring over a remote stretch of sea bigger than the state of California. Our mission today is to go out to our search area. We're conducting a visual search, looking for any objects in the water. Reporter: We've been with them, chasing grainy satellite images from the U.S., China, and France. Any word if anybody's seen anything? Nothing yet. Reporter: The radar array starts pinging. I just got two additional hits on the northern side of our search area. Reporter: Multiple content. Each of them some sort of anomaly on the water. The board is lighting up, huh? Getting indications on our screen. Reporter: But in these conditions forget about it. The crew circles three times over the radar contact with no success. As tough as this first stage has been, stage 2 will be even tougher because the heavy wreckage is miles away and miles down on the ocean floor. The computer models that we have done shows that the debris has moved almost 500 kilometers away from where it originated from. Because it's been so long? It's been so long and the currents are quite strong. Reporter: Oceanographer chadarachi padiarachi has made a map of where he thinks the debris came from based on the ocean currents. Finding it will require sophisticated submersible robots like these. So it's like a drone that goes underwater. Exactly. Reporter: His drones aren't cape avl going de capable of going deep enough but the U.S. Navy's are. Remember, we're talking about water that's deeper than where titanic sank. The average depth is 4,000 meters which is about 12,000 to 13,000 feet. The maximum depth is 10,000 meters. 30,000 feet under the sea. If you put Everest there you won't see the top. Reporter: They'll be listening for pings from the so-called black box. The cockpit reporters and data r0rders. The batteries on those black box reporters running out. And those devices are our best hope for finding answers on what happened in the final hours of flight 370.

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